Xtohjst  columbus albbecht



JOHN COLUMBUS ALBREOHT, OF COLUMBUS, GEORGIA.

SPARK-A SPECIFICATION forming partcf Letters R R ESTER.

Patent No. 295,322, dated March 18, 1884.

Application filed November 8. (No model.)

To all whom zit may. concern.-

Be it known that 1, JOHN C. ALBRECHT, of Columbus, in the county ofMoscogee and State of Georgia, have invented a new and ImprovedSparlLArrester, of which the following is a full, clear, and exactdescription.

' My invention consists of contrivauces, in con nection with the cone ofthe smoke-stack of a locomotive,for more effectually separating thecinders from the smoke than is usually accomplished, and for forcingthem back into the fire for consuming them, and at the sametimeincreasing the draft of the fire by means of the hotblast from thesmoke-stack, by which the cinders are carried back to the fire-box, allas hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a sectional elevation of the smok e stack provided with myimproved spark-an resting and draft-accelerating apparatus, the sectionbeing taken in the longitudinal plane of the boiler. Fig. 2 is partly afront elevation and partly a transverse section. Fig. Sis a plan View ofthe saddle by which the smokestack is connected to the top of theboiler. Fig. 4 is a horizontal section of Fig. l on the linear m,- andFig. 5 is a horizontal section of the cone attachments, looking upwardfrom the lines: it, 1.

I extend the draft-pipe a from the top of the saddle Z) to ahorizontalpartition, 0, located a short distance below the inverted cone (1, andsupported by brackets e, attached to the outer flaring shell, of thesmoke-stack a little below the top of said shell, said plate having aseries of holes, 9, thIOUgE which the sparks and cinders are to be discit between the draft-pipe a and the inner flaring pipe, '6, to beconducted through the two q the center of said plate, where thedraft-pipe arged to the space a discharges. and extending tangentiallyand in a slightly-curved line therefrom nearly to the outer edge ofplate c,where they terminate in a scroll, 0, around the larger ends ofthe openings BlIG SCIOllS forming a turn-bend, opening in the directionof the centerof the plate, which opening is about half closed or alittle more by a curved branch partition, 11, springing from the middleof the concaveside of partition Z, and terminating at the mouth of thescroll, where a. narrow passage, 9, admits the cinders within thescroll, to which they are directly forced along the inner sides of thepartitions Z and 12, while the smoke mainly escapes through the passagess, so as to ascend between the'outer edge of the cone and thesurrounding vertical pipet. lVi thin the scroll 0 the cinders are forceddown through the openings 9, which'arc nearly inclosed by said scrollsand the partitions Z and 2). Any cin ders escaping through the passages8 along with the smoke, and being forced up along pipe t, and the innerdome, a, are to be caughtby the droptube r, so. as to be forced by theblast through the openings at w,tl1rou'gh said inner dome to thespace,m,between said inner through space a to the space a, from whichthey are to be removed from time to time through hand-holes Z).

The pipes 75, into which the cinders are forced through the passages j,are to be extended back to the cab, either through the boiler above thetubes or outside of the boilershell 0 and down along the front plate,(2, of the fire-box,with two or more branches, c f discharging into thefire box at different heights, and with avalve or gate, 9, to direct thedischarge through the upper or lower branch, as may be preferred orfound best, according to the condition of the fire, which may be besteffected by discharging the blast low down for a time after replenishingthe fire with fresh fuel, and afterward by discharging the same higherup.

It is designed that the issues at s, between the scrolls o and thepartitions Z, shall be'sufficiently contracted to cause back pressureenough to effect such forcible discharges from these pipe-branches e orf as to blow the fire efiectually, and it is believed that thehot-blasts delivered from them will have better edect on dome and theouter dome, where the fall the fire than if cold. Besides thesereturnblasts through the fire, I have provided for other blasts into thelower end of the smokepipe to by means of the pipes '6, extending fromthe space h above the top plate of .the saddle I), through the same andthrough the boilerplate 0, and upward into the lower end of said pipe a,through which it is expected that the pressure of smoke and hot gasesreturning from space h into the smoke pipe will have a beneficial effectin accelerating the draft through the fire.

The saddle Z) is, for the purpose of my improved spark arresting andconsuming attachment, provided with the outer annular flange, k, for thesupport of the base section Z of the flaring pipe f, and for the supportof the ring m, by which the base of inner flaring pipe, Z, is connectedto the base of outer flaring pipe,

f, to support said pipe 1' and to make a tight joint between spaces aand h. The top plate of the saddle is suitably flared at a, each side ofthe holes j,for gathering the cinders in from the annular spacereceiving the cinders from above. The horizontal partition 0, on whichthe volute partitions rest for conducting the cinders through thepassages g, is made sufficiently smaller than the pipe 25 to provide anannular space, 0, through which any cinders escaping through passages sand falling back along pipe t may drop into the space a, along withthose carried up through the passages w, and falling through space .2and between the lower end of pipe t and the outer flaring pipe, f, wheresuflicient space is provided for the purpose.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the volute partitions Z, having branches 1) andscrolls 0, and horizontal partitions 0, having passages g,with the coned and smoke-pipe a, substantially as described.

2. The volute partitions Z, having branches 1) and scrolls 0, arrangedbetween plate a and cone d, with passages s for the smoke, and withpassages q for the cinders, said passages (1 dis charging through theopenings 9 of the plate 0 into the space h below, and the smoke-passagess discharging upward for the escape of the smoke, substantially asdescribed.

3. The combination of return-pipes 7;, leading into the fire-box throughthe front plate, with the smoke-pipe a, cone (Z, and the volutepartitions Z 2), scrolls 0 and plate 0, arranged to arrest the cindersand project them down into space 7:. outside of pipe (1, and into whichsaid return-pipes connect, substantially as described.

4:. The pipe t, inner dome, a, drop-pipe 0, and the inner flaring pipe,3, combined with the cone d and outer flaring pipe, f, substantially asdescribed.

5. The pipe 2?, inner dome, u, drop-pipe o,

and the inner flaring pipe, '5, combined with.

the cone (Z, volute partitions Z 1), scrolls 0, plate 0, having passagesg, smoke-pipe a, and the outer flaring pipes, f and 3 substantially asdescribed.

6. The pipe t, inner dome, to, having passages 10, drop-pipe v, outerdome, q, and outer flaring pipe, f, combined with the cone (Z, said conehaving means for mainly projecting the cinders down into the space h,substantially as described.

7. The combination of the blower-pipes '6 with the smoke-pipe a and thecone (Z, and partitions arranged for causing a returnblast in the spaceh, said pipes Z connecting with said space h and returning into thesn1oke-pipe, substantially as described.

8. The return-pipes 7c, in combination with a Smokestack having meansfor causing a re turn-blast in the space h, and being connected with thefire-box through the front plate by branches cf, and having aregulating-valve, g, substantially as described.

9. The saddle 12, having the flange support ing the base-pipe Z, of thepipe 2', for inclosing an annular space, 71, having connection with thereturn-pipes 7;, in combination with the return-blast pipes Z Z, adaptedto conduct said blast from said space to the lower end of the smoke-pipea, whereby the blast is util-ized'to accelerate the draft, substantiallyas set forth.

10. The saddle I), having the flange 7t, sup porting the base-pipe Z ofthe outer flaring pipe, f,"also the inner flaring pipe, Z, incombination with the smoke-pipe a and cone d, said cone (Z having meansfor projecting the cinders mainly into space h and partly into space a,substantially as described.

11. The cone d, having partitions Z 1) and scrolls 0, in combinationwith smoke-pipe a and partition-plate 0, and said plate having passagesg, communicating with space h for the discharge of the cinders, andarranged with relation to pipe t for producing the space 0, for enablingthe cinders escaping through passages s to fall into space a,substantially as described.

JOHN COLUMBUS ALBRECHT. lVit-nesses:

W. E. CURRY, A. O. BLAOKMAR.

